package henu.javaweb.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.URLEncoder;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import henu.javaweb.dao.*;
import java.sql.*;

import henu.javaweb.bean.Student;
import henu.javaweb.dao.StudentDao;
import henu.javaweb.util.*;
/**
 * Servlet implementation class SearchSudentServlet
 */
@WebServlet("/SearchSudentServlet")
public class SearchSudentServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public SearchSudentServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.getWriter().append("Served at: ").append(request.getContextPath());
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		PrintWriter out=response.getWriter();
		String id="";
		if(request.getParameter("searching")==null){
			id=request.getParameter("searching");
			String a = URLEncoder.encode("请输入学号", "UTF-8"); 
			out.print("<script type=\'text/javascript\'>alert(decodeURIComponent('"+a+"'));history.go(-1);</script>");
		}
		Student student=new StudentDao().findBySno(id);
		HttpSession session=request.getSession();
		session.setAttribute("seaStudent", student);
		response.sendRedirect("jsp/teacher/searchStudent.jsp");
	}

}
